Magnetosphere-ionosphere interaction through hydromagnetic waves

Details Magnetosphere-ionosphere interaction through hydromagnetic waves Magnetosphere-ionosphere interaction through hydromagnetic waves

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.217..427t&link_type=abstract

In ESA Achievements of the Intern. Magnetospheric Study (IMS) p 427-435 (SEE N85-24544 14-46)

Physics

Cross Coupling, Earth Ionosphere, Earth Magnetosphere, Magnetohydrodynamic Waves, Magnetosphere-Ionosphere Coupling, Field Aligned Currents, Ionospheric Conductivity, Kinetic Energy, Magnetic Flux, Magnetohydrodynamic Stability, Particle Acceleration

Scientific paper

Magnetosphere-ionosphere interaction in two regimes is reviewed. In the first there is no significant kinetic energy flux of energetic particles along field lines, and the classical shear Alfven wave with its field aligned currents and Poynting flux plays an essential role in the localized interaction processes. Different responses of the ionosphere for the incidence of the shear Alfven wave and ducted fast magnetosonic wave are demonstrated. In the second regime where the field-aligned kinetic energy flux of particles cannot be neglected, wave dispersion and particle acceleration are discussed. Quantitative numerical simulations of the coupling interaction are surveyed.

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